Experimental Study of New Insulation Lightweight Concrete Block Floor Based on Perlite Aggregate, Natural Sand, and Sand Obtained from Marble Waste

Table 2

Physical properties of natural sand and crushed waste marble.

Properties	Natural sand	Crushed waste marble
Absolute density (g/cm^3)	2.51	2.69
Bulk density (g/cm^3)	1.42	1.45
Equivalent of sand (%)	91	0.81
Los Angeles (LA) (%)	27	22
Water absorption	3	7